The utility model discloses a gathering line segmentation dredging pipe system, include along at least one middle dredging pipe system that the defeated main line of collection set up, middle dredgingpipe system includes main line dredging pipe ware stop / transmitting system, big bypass system, dredging pipe ware indicating system and logic control system. Compared with the prior art, the utility model discloses an actively the effect is: the utility model discloses based on hydrops and the industrial analysis of slug load, adopt segmentation dredging pipe's mode to carry out the digestion of duct section plug flow, through inverted order dredging pipe, furthest utilizes low reaches to go ahead of the rest behind the dredging pipe volume of pipeline and realizes the upper reaches and come liquid to receive, reduces end point section plug flow load, avoids expanding large -scale section plug flow trap, the simple structure of dredging pipe system, it increases conventional dredging pipe station to compare, and dredging pipe ware ball receiving barrel, a service section of thick bamboo and affiliated facilities can be saved to this scheme, have the advantage in heavy -calibre, highpressure's piping work project.